Exhaust whistle



April 7, 1931. J. x-:vlcH

EXHAUST WHISTLE Filed NOV. 3, 1930,

Patented Apr. 7, 19311 UNTE'D STATES J'ERIE EVICI-I, OF SANTA BARBARA, CALIFORNIA EXHAUST WHISTLE Application led November 3, 1930.

My invention has for its object to provide a new and improved exhaust whistle for automobiles, etc. and it particularly seeks to provide a whistle of the character stated of a simple inexpensive construction and one' which will give a multi-tone effect.

Further, it is an object of the invention to provide an exhaust whistle that can be attached to the end of the exhaust pipe by any one, be he a mechanic or not, and in a minimum of time and with a minimum of elt'ort.

Further, it is an object to provide an exhaust whistle which is mounted on a valve plate that serves to close, in whole or in part, the outlet end of the exhaust pipe, such plate serving the dual purpose of diverting exhaust gases through the whistle and of a carrier for the whistle.

Further, it is an object to provide an exhaust whistle of the two-note type in which both whistle barrels are made as one pipe and are controlled by a single valve. f

Other objects will in part be obvio-us and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends, the invention still further resides in the novel details of construction, combination and arrangement of parts, all of which will be first fully rdescribed in the following detailed description, then be particularly pointed out in the appended claims, reference being had to the accompanying draw-- ing, in which Y Figure 1 is a side elevation illustrating my invention, the valve being in the open position.

Figure 2 is a top plan view of the same.

Figure 3 is an enlarged detail longitudinal section on the line 3 3 of Figure 2. Y

Figure 4 is a horizontal section on the line 4 4 of Figure 3.

Figure 5 is a detail plan of the whistle saddle block.

In the drawing, in which like reference indicate like parts in all of the figures, 1 represents the exhaust pipe, over the outlet end of which the valve plate 10 is designed to be held. Secured to the exhaustv` pipe 1 adjacent its outlet end is a mountingblock 2 constituting one element of a hinge numerals ofi abl Serial ll'o. 493,126.

joint at 7, through which the hinge pin 8, that secures the valve plate 10 hingedly to the block 2, passes. f The block 2 is held in place by a strap 3, a cross bar 4 and nuts 6, the latter being on the threaded ends 5 of the strap 3.

The valve 10 has ears 9 to straddle the block 2 and it is through these ears that the hinge pin 8 passes.

The valve plate 10 has an aperture 11 to register with the outlet of the exhaust pipe 1 at times, see Figure 3. It also carries a saddle hlock 24 interposed between the whistle barrel or pipe 15 and the valve plate 10, the parts 10, 24 and 15 together with the whistle dividing block 18 are secured in their co-relative assemblage by means of suitable screwsV 27, see Figure 4, the latter passing through the slotted ends 25 of the saddle block 24. The saddle block has an aperture f 26 to register with the aperture 11 and with the bore 19 of the whistle dividing block 1S,

Vthe latter bore communicating with the bore 20 to deliver exhaust gases into the space between the flattened or cut-away portion 21 -of the dividing block 18 and the adjacent wall of the whistle pipe 15.

The whistle'proper consists of the pipe or barrel 415, the ends of which are plugged as at 16 and 17, there being a dividing block V18 located within the barrel 15, preferably nearer one end than the other in order to malte a two-tone whistle. The barrel 15 of the whistle adjacent the ends of the dividing block 18 is provided with outlet openings 22 and 23 respectively.

12 designates suitable pull wires or cords for bringing the valve plate 10 with its connecting whistle over the end of the exhaust pipe, this movement being resisted by a suitable coil spring 13 suitably connected to the valve plate 10 and to any suitable fixed support 14. y

While the spring 13 has been shown connected to a lug14 projecting from the block 2, it is evident that said end ofthe spring may be connected anywhere Where it can be anchored to the vehicle, and the length of the spring may be any length found desir-` T he normal position of the parts is shown in Figure l. The plate 10 not only serves the two functions hereinbefore specified, but in a measure acts as the downward defiector for the exhaust gases emitted by the exhaust pipe while the parts are in the normal position.

In order to blow the whistle it is only necessary to pull the wires or cords l2 to bring the plate l0 more or less into proximity with the end of the exhaust pipe, the loudest tone being blown when the parts are in the position shown in Figure 3.

lVhile I have shown and prefer a two-tone whistle, it is obvious that a one-tone Whistle may be employed and this can be accom plished by using only onehalf of the whistle part. For example, the lower portion ot the whistle having the plug 17 may be cut oil' and the opening in the plug 1S leading to the cutolt' end of the whistle may be plugged so that all of the exhaust will pass through the whistle part 15. This being an obvious thing, detailed illustration of the modification is thought to be unnecessary.

From the foregoing description, taken in connection with the accompanying drawing, it is thought the construction, operation and advantages of my invention will be clear to those skilled in the art to which it relates, it beingunderstood that changes inthe details of construction and design of parts may readily be made without departing from the spirit 'of the invention or the scope oi the appended claims.

That I claim is:

l. In exhaust whistles wherein is provided an exhaust pipe having an outlet; a `block and clamp held lon said exhaust pipe, a plate having an aperture, means hingedly mounting said plate on said block in a `position to close over said outlet with the aperture of the plate -in register with said outlet, means continuously tending to hold said plate away from said outlet', a whistle carrie-d by said plate and having` an inlet registering with said aperture, and means kto move said plate over said outlet.

In exhaust Whistles wherein is provided an exhaust pipe having an outlet; a plate having an aperture, mea-ns hingedly mounting said plate on said exhaust pipe in a. position to close over said outlet with the aperture ot the plate in register with said outlet, means continuously tending to `hold said plate away from said outlet, a Whistle carried by said plate and having an inlet registering with said aperture, and means to `move said plate over said outlet, said whistle including a. pipe lying transversely to saidfexhaust pipe, a dividing block within said whistlel pipe, meansclosing the ends of 4said whistle pipe, said exhaust whistle 'pipe having apertures in either side of said dipipe.

J ERIE EVICH. 

